Kitchen range ventilator



Nov. 5, 1963 GJ. MEYER KITCHEN RANGE VENTILATOR Filed Nov. 6, 1961INVENTOR. J. ME v.52

fi/wm M GEORGE ATTOQN E Y S United States Patent 3,109,358 KITCIEN RANGEVENTHLATGR George E. Meyer, 1640 Lafayette Road, Clareinont, Calif.Filed Nov. 6, 1961, Ser. No. 151,414 1 Claim. (Cl. 98115) This inventionhas to do generally with ventilators and particularly with motorizedventilators for use over kitchen ranges.

An object of the invention is to provide a new and improved ventilatorwhich is particularly designed to fit the top of the new-style kitchenranges which are adapted to be hung from the wall of a room or otherwisesupported at a height abovethe floor. Such ranges have the surfacecooking units in a shelf-like portion at the bottom of the range and theoven disposed rearwardly offset therefrom and at a higher elevation.

Another object is to provide a novel arrangement of ventilating fans orblowers which tends to reduce vibration and having a minimum over-allheight, thereby enabling the provision of a ventilating unit of lowprofile or silhouette.

A further object is to provide a device of the type indicated having anovel front wall or panel which is adjustable to control the size of theopening to the blowers and means associated therewith for controllingthe blowers.

These and other objects will be apparent from the drawing and thefollowing description. Referring to the draw- FIG. l is a frontelevational view of a wall-hung-type range showing a range ventilatorembodying the invention mounted on top thereof;

FIG. 2 is a plan view, partially broken away, of the ventilator of FIG.1, but on a larger scale;

FIG. 3 is a sectional view on line 3-3 of FIG. 3, but on a larger scale;and

FIG. 4 is a wiring diagram.

More particularly describing the invention, numeral 11 generallyindicates a kitchen range of recent style which is adapted to be mountedagainst and hung from a wall 12. The range includes cooking units orburners 13, a control panel 14, and ovens 15.

Numeral 16 generally designates a ventilator embodying the invention,and this is shown mounted upon the top of the stove or range 11. Theventilator includes a casing 18 which has an upper wall 19, end walls21, and a rear wall which is formed to provide two recessed sections 22,each of which terminates in a rearwardly directed duct section 23. Thelatter, with the top wall 19 and top wall 11' of the stove define anoutlet 24 which may register with a duct 25 in the wall 12. Near theforward portion of the casing and parallel to rear wall sections 22, Iprovide an air filter comprising two panel filters 27 secured in frames28 on opposite sides of an electrical terminal box 30. The end walls 21may have bottom flanges 31 to facilitate mounting the casing on top ofthe stove and screws 32 may be used to secure the casing in place.

The various walls of the casing and filter together with the top of thestove define a blower chamber, designated 34, to which air from the roomhas access through an opening 32 and through filter panels 27. Theopening 32 is provided by so proportioning the casing to the stove as toresult in the casing extending forwardly of the top of the stove asshown in FIG. 3.

The forward portion of the casing is provided with a hinged front wallor panel 36 which normally is disposed vertically as shown in thedrawing. However, this panel is hingedly mounted at 37 along its upperedge 3,109,358 Fatented Nov. 5, 1963 to the forward edge portion of thetop wall 19 so that it can be swung outwardly to the broken-lineposition shown in FIG. 3. The panel is releasably held in selectedposition by permanent magnets 33 mounted on the end walls 21 of thecasing. The magnets are doubleended so as to cooperate with the mainportion of the panel when the panel is vertical or to cooperate withflanges 39 formed on sector walls 40 of the panel, when the panel israised.

It is a feature of my invention that I provide two blowers, 42 and 43,in the chamber 34. These are disposed in juxtaposed relation and withtheir outlets 42 and 43' adjacent each other. The blowers includesuitable motors 44 and 45 which rotate in opposite directions asrequired by the orientation of the blowers. The blowers may be securedto a blower support channel 46 and to the rear wall of the casing in anysuitable manner. By arranging the blowers as shown, a single outlet fromthe casing can be used while maintaining the height of the unit at aminimum. Also, counterrotation of the blowers reduces over-all vibrationsince the vibrations of one motor tend to be cancelled by those of theother.

In FIG. 4 I show an electrical diagram'suitable for connecting andcontrolling the blowers. In this both motors are shown connected to oneside of the AC. line, designated 50. The other side, line 51, passesthrough a thermostatically controlled switch means 52 to motor 44 sothat under conditions of high temperature this motor will be energizedto operate its blower.

A manually operable switch 54 is connected to energize either motor 44or both motors, as shown in the diagram. In addition to the above, theforward panel 36 of the ventilator is connected to operate a switch 56to close the circuit through motor 45 when the panel is tilted upwardly.I

Although I have illustrated and described a preferred form of myinvention, I contemplate that various changes and modifications can bemade therein without departing from the invention, the scope of which isindicated by the following claim.

I claim:

A ventilating device of relatively low profile adapted to be mounted onthe top of a wall-hung type kitchen range, comprising a generallyrectangular casing having a top wall, a rear wall, end walls and a frontwall, said top wall being of greater width and said end walls of greaterlength than the depth of the top of the range whereby said casing, whenmounted on top of the range, projects forwardly thereof to provide adownwardly facing, permanent inlet opening adjacent said front wall andextending substantially from one end wall to the other, said end, frontand rear walls being narrow to provide a low over-all height of casing,said casing having an outlet duct rearwardly of said inlet opening, apair of electrically motorized blowers mounted in said casing betweensaid inlet opening and said outlet duct, said blowers being relativelythin axially of their axes of rotation and having counter-rotatingrotors, said blowers including housings having outlet portions disposedin juxtaposed relation and extending partially into said outlet duct.

References Cited in the file of this patent UNITED STATES PATENTS2,341,245 Sonntag Feb. 8, 1944 2,836,114 Weaver May 27, 1958 2,905,073Aveni Sept. 22, 1959 2,971,451 Feig Feb. 14, 1961 3,026,788 Spear Mar.27, 1962 3,031,946 Watt et al. May 1, 1962

